Wireshark · Ethereal-dev: [ethereal-dev] tvbuff + col_append mystery

[Frank Singleton <frank.singleton@xxxxxxxxxxxx>]

Hi,

Well I am busy tvbuffing everything, but I am
experiencing some strange things now.

When I run the logfile through my dissector, it
no longer appears to "append" to the COL_INFO display, unless
I explicitly enter my protocol display filter at the bottom of
the GUI.

Here is a code <snip> typical of what I used in the
pre-tvbuff days without problem.. I sprinkled
some printf's here and there, and here is what I get.

start colinfo ,octet1 = 11
end colinfo octet1 = 11
msg type ,octet1 = 11

Note msgtype = 11 does exist in my
static const value_string msgnames[] declaration.

Note: I do get "inside check_col" when I 
enter my protocol as the display filter.

eg:
start colinfo ,octet1 = 11
inside check_col
found colinfo
end colinfo octet1 = 11
msg type ,octet1 = 11


Any thought would be appreciated.

I used the night build from 2000-06-14

Cheers / Frank..

<snip>
    /* Save msgtype, and display it in INFO column */

    /* Get fd back for COL_INFO */


    printf("start colinfo ,octet1 = %i\n",octet1 );

    if (check_col(pinfo->fd, COL_INFO)) { ** why dont I get past here ??
      printf("inside check_col  \n");
      str = match_strval(octet1, msgnames);
      if (!str) {
	str = "Unknown";	  /*   set a default value if not known */
      }
      printf("found colinfo \n");
      
      col_append_fstr(pinfo->fd, COL_INFO, " ( %s )", str); /* display
msg type */
    }

    printf("end colinfo octet1 = %i \n",octet1);
<snip>